<template>
    <div>
        <h2>{{id ? '编辑':'新建'}}广告位</h2>
        <el-form label-width="120px" @submit.native.prevent="save">
            <el-form-item label='名称'>
                <el-input v-model="model.name"></el-input>
            </el-form-item>
            <el-form-item label="广告">
                <el-button @click="model.items.push({})"><i class="el-icon-plus"></i>添加广告</el-button>
                    <el-row type="flex" style="flex-wrap:wrap">
                        <el-col :md="24" v-for="(item,i) in model.items" :key="i">
                            <el-form-item label="跳转连接（URL）">
                                <el-input v-model="item.name"></el-input>
                            </el-form-item>
                            <el-form-item label='图片' style="margin-top:0.5rem">
                                <el-upload
                                class="avatar-uploader"
                                :action="$http.defaults.baseURL + '/upload'"
                                :show-file-list="false"
                                :on-success="res => {$set(item,'image',res.url)}">
                                    <img v-if="item.image" :src="item.image" class="avatar">
                                    <i v-else class="el-icon-plus avatar-uploader-icon"></i>
                                </el-upload>
                            </el-form-item>
                            <el-form-item>
                                <el-button size="small" type="danger" @click="model.items.splice(i,1)">删除</el-button>
                            </el-form-item>
                        </el-col>
                    </el-row>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" native-type="submit">保存</el-button>
            </el-form-item>
        </el-form>
    </div>
</template>

<script>
export default {
    props:{
        id:{}
    },
    data (){
        return{
            model:{
                items:[],
            },
        }
    },
    methods: {
        async save() {
            let res
            if (this.id){
                res = await this.$http.put(`/rest/ads/${this.id}`,this.model)
            }else{
                res = await this.$http.post('/rest/ads',this.model)
            }
            this.$router.push('/ads/list')
            this.$message({
                type:'success',
                message:'保存成功'
            })
        },
        async fetch() {
            const res = await this.$http.get(`/rest/ads/${this.id}`)
            this.model = Object.assign({},this.model,res.data)
        },
    },
    created(){
        this.id&&this.fetch()
    }
}
</script>

